Science & Technologies NEW RECORDS FOR HYPOGEOUS ASCOMYCETES IN BULGARIA

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1 NEW RECORDS FOR HYPOGEOUS ASCOMYCETES IN BULGARIA Maria Lacheva Agricultural University-Plovdiv 12, Mendeleev Str., 4000 Plovdiv, Bulgaria ( ABSTRACT New horological data on seven hypogeous ascomycetes are reported. One of them Tuber borchii are reported for the first time in the country, and for the remaining six species to indicate new localities. Four species are of high conservation value included in the Red List of fungi in Bulgaria. The species is described and illustrated on the basis of Bulgarian specimens. Key words: Bulgaria, hypogeous ascomycetes, new taxa, rare taxa, species diversity, Red List, truffles. INTRODUCTION In mycological literature only eight species of hypogeous fungi have been known so far from the country. They have been classified within two classes of the Ascomycota division: Eurotiomycetes (1) Elaphomyces granulatus Fr. : Fr. (Kuthan and Kotlaba, 1981; Stoichev, 1981; Gyosheva, 2000; Denchev et al., 2007, Dimitrova and Gyosheva, 2008), and Pezizomycetes (7) Hydnotrya cerebriformis (Tul. & C. Tul.) Harkn. (Stoichev and Gyosheva, 2005), H. tulasnei Berk. & Broome (Stoichev, 1981; Dimitrova and Gyosheva, 2008), Choiromyces meandriformis Sacc. & Bizz. (Georgiev, 1906, Barzakov, 1931, 1932, Hinkova, 1961), Tuber aestivum Vittad. (Hinkova, 1965, Dimitrova and Gyosheva, 2008), T. brumale Vittad. (Dimitrova and Gyosheva, 2008), T. excavatum Vittad. (Dimitrova and Gyosheva, 2008), and T. puberulum Vittad. (Hinkova and Stoichev, 1983, Dimitrova and Gyosheva, 2008, 2009). This work presents new information about the species diversity and distribution of hypogeous ascomycetes in Bulgaria. Presented is a morphological description and macro photography of two new species. I hope that this document will be useful to create a database Bulgarian hypogeous ascomycetes. MATERIALS AND METHODS The macromycetes were registered during mycological field trips. Air-dried studied specimens of the fungus are kept in the Mycological collection of the Agricultural University, Plovdiv (SOA). The samples are documented with color photographs and concise description. Ascomata of the species were photographed with SONY Cyber-shot 5.1Mpix. in standard JPEG format. Microscopic features are observed and measured in Melzer s reagent under Amplival LM, with magnification The authors abbreviations of fungi are according to Kirk & Ansell (2004). Nomenclature of species follows Kirk & al. (2008). Hypogeous ascomycetes were identified with the aid of works by Moser (1963), Hennig (1971), Dennis (1978), Montecchi and Lazzari (1993), and Dimitrova and Gyosheva (2008). Distribution of the taxa is given according to the floristic regions adopted in the Flora of the PR Bulgaria (Jordanov, 1966). The new species species to Bulgaria in the list below are designated with asterisks. The conservation status is indicated according to the Red List of Fungi in Bulgaria (Gyosheva et al., 2006). RESULTS Plant studies 30

2 One hypogeous ascomycetes species Tuber borchii are reported for the first time from Bulgaria. New localities for six species (Elaphomyces granulatus, Choiromyces meandriformis, Hydnotrya tulasnei, H. cerebriformis, Tuber exavatum, and T. puberulum) have been established. Four hypogeous species (Elaphomyces granulatus, Hydnotrya tulasnei, Choiromyces meandriformis, and T. puberulum) are with high conservation value and are included in the Red List of Fungi in Bulgaria (Gyosheva et al., 2006). Elaphomycetales Elaphomycetaceae Elaphomyces granulatus Fr. : Fr. (Fig. 1) Rila Mts, in soil among mosses, along Picea abies forest, near the Treshtenik chalet, above the Yakoruda town, , leg. & det. M. Lacheva (SOA ). Rhodopi Mts (Central), in soil among mosses, in a community of Corylus avellana, Pinus sylvestris, in the vicinity of the colony of Galabovo village, Plovdiv distr., , leg. & det. G. Stoichev (SOA ). The species is known from Black Sea Coast, Northeast Bulgaria and Pirin Mts (Kuthan and Kotlaba, 1981, Gyosheva, 2000, Dimitrova and Gyosheva, 2008). The species is included in the Red List of Fungi in Bulgaria (Gyosheva et al., 2006) under the category Critically Endangered (CR). Fig. 1. Ascomata of Elaphomyces granulatus Pezizales Pezizaceae Hydnotrya cerebriformis (Tul. & C. Tul.) Harkn. Rhodopi Mts (Central), in the community of Picea abies and Pinus sylvestris forests, nearly the Ravnishta chalet, Plovdiv distr., , leg. M. Lacheva, det. G. Stoichev & M. Lacheva (SOA ). The species is known the first time from Central Rhodopi Mts (Stoichev and Gyosheva, 2005, sub Hydnobolites cerebriformis Tul. & C. Tul.). Hydnotrya tulasnei (Ber.) Ber. & Broome (Fig. 2) Rhodopi Mts (Central), in soil, in a community of Picea abies and Pinus sylvestris forests, nearly the village of Byala Cherkva, , leg. G. Stoichev & M. Lacheva, det. G. Stoichev & M. Lacheva (SOA ). Rila Mts, in soil, in a community of Picea abies and Pinus sylvestris L., above the Yakoruda town, , leg. M. Lacheva, det. G. Stoichev (SOA ). The species is known from Rhodopi Mts (Western, Central) (Stoichev, 1981, Dimitrova and Gyosheva, 2008). Plant studies 31

3 It is considered to be Critically Endangered (CR), according to Gyosheva et al. (2006). Fig. 2. Ascomata of Hydnotrya tulasnei Tuberaceae Choiromyces meandriformis Sacc. & Bizz. (Fig. 3) Rhodopi Mts (Central), in soil, in a community of Picea abies and Abies alba, above Smolyanski ezera chalet, , leg. M. Lacheva, det. G. Stoichev & M. Lacheva (SOA ). The species is known from Vitosha region and Rila Mts (Georgiev, 1906, Barzakov, 1931, 1932, Hinkova, 1961). It is considered to be Endangered (EN), according to Gyosheva et al. (2006). Fig. 3. Ascomata of Choiromyces meandriformis Plant studies 32

subsequently beige, or pale reddish brown at maturity, with a close network of whitish meandering veins. Asci 70-80.7 x 50-80.

4 *Tuber borchii Vittad. (Fig. 4) Ascomata hypogeous, more or less globose, 2 6 cm in diameter, with thick white, white yellowish, becoming brown ochre coat, initially pubescent, subsequently smooth; gleba initially whitish, subsequently beige, or pale reddish brown at maturity, with a close network of whitish meandering veins. Asci x μm, subglobose to ovate or ellipsoid, short-stalked, 1-3 (-4) spored (usually 3-spored). Ascospores x μm (with ornaments), varying in size according to their number in the ascus, ellipsoid to broadly ellipsoid, with a large reticulate coat, μm high, initially hyaline, pale yellow to yellowish-brown at maturity. Smell tuber-like, garlicky, pleasant at first, unpleasant with age. Taste pleasant. Habitat. Tuber borchii is tolerant of a wide variety of soils, but prefers sandy calcareous soils and calcareous soils, mainly in association with conifers (Pinus sylvestris L.) or broad-leaved (Fagus sylvatica L., Quercus sp.) trees. January-October. Notes: Tuber borchii is closely related to Tuber dryophilum, Tuber maculatum and Tuber puberulum are a white truffles group, with reticulate spores, difficult to tell apart. They have similar macroscopic and microscopic characteristics and sometimes they show a range of intermediate forms between several of these species (Montecchi and Lazzari, 1993). Specimens examined: Rhodopi Mts (Western), in soil, in a community of Picea abies and Pinus sylvestris forests, nearly the Jrebichko village, Pazardjik distr., , leg. G. Stoichev, det. G. Stoichev (SOA ); In soil among mosses, in a community of Pinus sylvestris and Fagus sylvatica, above Jrebichko village, Pazardjik distr., , leg. G. Stoichev & M. Lacheva, det. G. Stoichev & M. Lacheva (SOA ). Fig. 3. Ascomata of Tuber borchii Tuber excavatum Vittad. Rhodopi Mts (Western), in a community of Fagus sylvatica and Pinus sylvestris, near Ravnogor village, distr. Bratsigovo, , leg. G. Stoichev & M. Lacheva, det. G.Stoichev & M. Lacheva (SOA ). The species is known the first time from Northeast Bulgaria (Dimitrova and Gyosheva, 2008). Tuber puberulum Berk. & Broome Rhodopi Mts (Central), in soil, in a community of Pinus sylvestris, above Byala Cherkva village, , leg. G. Stoichev (SOA SOA); Rhodopi Mts (Central), in soil, in a community of Pinus sylvestris, around Brestnik village, Plovdiv distr., , leg. G. Stoichev, det. G. Stoichev (SOA ). The species is known from Rhodopi Mts (Central) (Hinkova and Stoichev, 1983, Dimitrova and Gyosheva, 2008). Plant studies 33

5 It is considered to be Endangered (EN), according to Gyosheva et al. (2006). REFERENCES 1. Barzakov, B Neue fur Bulgarien Pilzarten, Izv. Bulg. Bot. Druzh., 4, (In Bulgarian) 2. Barzakov, B Zwei Tuberarten und einige fur Bulgarien neue Pilzarten, Izv. Bulg. Bot. Druzh., 5, (In Bulgarian) 3. Denchev, C.M., Fakirova, V.I., Gyosheva M.M. and Petrova, R.D Macromycetes in the Pirin Mts (SW Bulgaria), Acta Mycol., 42(1), Dennis, R.W.G British Ascomycetes. 2nd ed. J. Cramer, Vaduz. 5. Dimitrova, E., Gyosheva, M Hypogeous ascomycetes in Bulgaria, Phytol. Balcan., 14(3), Dimitrova, E., Gyosheva, M Bulgarian Pezizales : diversity, distribution and ecology, Phytol. Balcan., 15(1), Georgiev, S Contribution to the diatoms, fungi, fernalies, and vascular plants in Bulgaria. A contribution to the knowledge of cryptogamous and phanerogamous plants in Bulgaria, God. Sofiisk.Univ., 2, (In Bulgarian) 8. Gyosheva, M New and rare macromycetous taxa to Bulgaria, Phytol. Balcan., 6(2-3), Gyosheva, M.M., Denchev, C.M., Dimitrova, E.G., Assyov, B., Petrova, R.D. and Stoichev, G.T Red List of Fungi in Bulgaria, Mycol. Balcan., 3, Hennig, M Handbuch fur Pilzfreunde. Bd. 2. Nichtblatterpilze. Gustav Fischer Verlag, Jena. 11. Hinkova, Ts Materials on the fungous flora of Bulgaria, Izv. Bot. Inst. (Sofia), 8, (In Bulgarian) 12. Hinkova, Ts Materials on the fungous flora of Bulgaria, God. Sofiisk. Univ. Biol. Fak., 2. Bot. Mikrobiol. Fiziol. Biokh. Rast., 58, (In Bulgarian) 13. Hinkova, Ts., Stoichev, G New and rare macromycetes for Bulgaria, Fitologiya, 23, (In Bulgarian) 14. Jordanov, D. (ed.) Flora Reipublicae Popularis Bulgaricae. Vol. 3. In Aedibus Acad. Sci. Bulgaricae, Serdicae. (In Bulgarian) 15. Kirk, P.M., Ansell, A.E Authors of fungal names. CABI Bioscience, Wallingford. Electronicversion: Kirk, P.M., Cannon, P.F., David, J.C., Stalpers, J.A. (eds) Dictionary of the Fungi. 10th ed. CAB International, Oxon. 17. Kuthan, J., Kotlaba, F Makromyzeten des Nationalparkes Ropotamo in Bulgarien, Sborn. Nar. Mus. Praze, Řada B, Přir. Vědy, 37(2), Montecchi, A. & Lazzari, G Atlante fotografico di funghi ipogei. Assoc. Micologyca Bresadola, Trento. 19. Moser, M Ascomyceten (Schlauchpilze) In: Gams, H. (ed.), Kleine Kryptogamenflora. Band II a. Gustav Fischer Verlag, Stuttgart, New York. 20. Stoichev, G New taxa for Bulgarian fungous flora, Nauchni Trudove Selskost. Inst. Vasil Kolarov, 26(4), (In Bulgarian) 21. Stoichev, G., Gyosheva, M New and rare macromycetes to Bulgaria. In: B. Gruev et al. (eds). Proceedings of the Balkan Scientific Conference of Biology in Plovdiv (Bulgaria), May free.hit.bg/batkiro/bcb/gs_mg.pdf. Plant studies 34

Science & Technologies NEW DATA OF SOME RARE LARGER FUNGI OF AGARICACEAE (AGARICALES) IN BULGARIA

Science & Technologies NEW DATA OF SOME RARE LARGER FUNGI OF AGARICACEAE (AGARICALES) IN BULGARIA NEW DATA OF SOME RARE LARGER FUNGI OF AGARICACEAE (AGARICALES) IN BULGARIA Maria Lacheva Agricultural University-Plovdiv 12, Mendeleev Str., 4000 Plovdiv, Bulgaria E-mail: agaricus@abv.bg ABSTRACT New